@Braiam http://unix.stackexchange.com/posts/141257/revisions why? I'm tempted to roll it back as it changes the subject of one sentence to mean "any device", while the rest of the answer is talking about the user's device. Makes the grammar funky
@Patrick I'm sure you meant that as header, and seems more specific to what will achieve following those instructions, in fact, if I don't read the instructions I would be thinking that any device I plugged will have the permissions I've set by reading just the heading
There's only one possible device that can be referred to in the answer. And if you think that sentence should have been changed, why not the earlier one, "add your user to the group that owns the device"
@Patrick I don't have problem as long as you say "this device" meaning that any other device will not be affected, "the" doesn't fulfills this role unambiguously and leave too much to interpretation of the context, which is my main problem
In my language, "The End" means "El Fin", but without context you may think the end of the movie, the end of the protagonist, the end of the villain, etc. my grip is that the header should be understandable without context
if it can be unclear to me, it can be unclear to others
So you're saying there are multiple potential devices that I might be referring to? I'm honestly curious what. From even a brief glance, you can tell we're talking about a specific card reader
@Braiam No, but neither does of one specific device. That means that you can only change one as opposed to many devices. Not that you can only change this as opposed to the other device.
It is not equivalent to de una cosa but to de una sola cosa.
@Braiam Just one and not more. But the point is that you are not specifying which device. You're only saying that you're talking about one device, not two, and a specific one.
@Gilles I'm not sure that both are dupes, this one seems more about accessing a particular device without allowing access to others, while the other question is about how to access all disks. — Braiam57 mins ago
@Braiam In that case, remove the one. Just say of a specific device. I still think that of the device is better but at the moment it just doesn't read like a native's English.
@Braiam Note that there you wrote something different: a specific user, not one specific user. That's the main problem with your edit.
I'd never thought of this before but it's actually quite tricky. I know that one specific just doesn't work there but I can't put my finger on precisely why. Just take our word as two native speakers for it.
In the new edit, "one specific", it is clear that only one device is being referred to, but there's nothing that qualifies it as to which one. Meaning that any device, as long as it's one, fits the subject.
now this is another worldly, I click on any of the band songs in the side bar and I get a yt video + information where to buy and lyrics of the song.... D:
Can't find much that addresses the use of "one" as an indefinite article. This actually kinda surprises me. It's a common enough occurrence that I expected it to be addressed.
Canonical question regarding the recently disclosed padding oracle vulnerability in SSL v3. Other identical or significantly similar questions should be closed as a duplicate of this one.
What is the Poodle vulnerability?
I use [product/browser]. Am I affected?
Is [product] vulnerable to t...
@FaheemMitha you are basically suggesting a local merge ? Anyway I don't this will cut it in my case, I want something that is as easier as possible to apply, plus I don't need yet another repository, I can't screw up a patch, a repository is way too cumbersome for such task and much easier to get wrong especially over time and usage . — user248571010 hours ago
Huh? Sometimes I wonder why I bother replying to these things.
Please keep an eye on unix.stackexchange.com/users/85812/asura. He's asked several Q's and not accepted any and seems like we're doing him a disservice if he's actually trying to learn shell scripting by answering his Q's. A good book would be more apt.
Welcome to the site! Please take a moment and read through our help center to understand how the site works. You have now asked 6 questions and have not accepted a single answer, do none of the answers you received answer your questions? — terdon ♦21 secs ago
@terdon we have done shell script code review in the past. “Review this script” is too broad (but sometimes it comes to that) but not off-topic. “Debug this script” is ok as long as the script is a serious attempt.
If the script is working (at least in nominal cases), Code Review will take it
@Gilles My feeling is that 1) in general, dumping a script is not very good 2) if you do dump, the question should be "How do I make this work" and not "how do I make this better".
In other words, if the script is working and you want us to improve it, off topic. If it is not working and you want us to fix it, on topic.
@terdon a generic “how I make this better” is too broad for here (but ok for Code Review as long as the script has no known bug). A specific question e.g. “how do I make my script work with file names containing spaces” is fine (and may well be a dupe of the generic question).
@Gilles - also on a Q where it's now his 5th Q in the same wheelhouse where he's not done really any search (assuming that he doesn't know) I'm not going to spoon feed the OP. Since the real solution is to pick up a book and start learning scripting.
@Gilles - but you've obviously read tutorials and learned through some means where you had example problems or Q's that you coded up.
The wikibook on bash scripting has all the A'ers to his Q. How to parse command line args and such. It's also in a single page format and isn't overly terse, IMO.
Actually, I just realized that the Q is asking for a very specific improvement so I guess it is on topic. I saw the "how do I optimize" as a general request and missed that he just wanted greater precision.
I know there are some ppl that cannot learn from a book while there are others that can, I typically don't read books either since I like to use them more for references when I have specific Q's. The only books I've read are about Perl.
@Gilles We know you're a bot. Just one that can pass the Turing test is all.
@slm Heh, I started one once. That's how I learned the basics. As soon as I had enough to do the task I needed to do I stopped though. Same with C. I really should read at least one book from cover to cover once.
@Gilles - you said you did some TA'ing for a time so you've clearly been in the position of trying to teach ppl things. Do you think learning from a book is not good advice to a novice?
mind you that I didn't just say that, I also handed him a book that should be easily accessible, both physically and mentally.
@Braiam - gem installing jenkins worked for my BTW. I think you need to have 1.9.3 as a lowest version allowed.
@Gilles Yeah I would never say it's the only way, but if you are having a lot of Q's and there's a book that I can refer you to or a website to read, I think I'm doing you a better service, unless I'm your instructor and I'm being paid to teach you.
@Braiam - oh that Q. The guy hasn't been back since I left my comment. I wasn't even gonna bother with that one.
@Braiam - shows he visited the site yesterday but didn't bother to reply to my comment about the rule for port 22
@Anthon I deleted most of them. I was wrong, I thought he was asking "How can I optimize my script?" which I would consider off topic. Instead he was asking "How can I make this script do X?" which is indeed on topic. I was just confused by the word "optimize".
General Q to other's here. When we have Q's such as this one unix.stackexchange.com/questions/162247/…, do we want to simply close these against a Q&A that shows how to debug?
I'm having some problems with some scripts in bash, about errors and unexpected behaviors. I would like to investigate the causes of the problems so I can apply fixes. Is there a way I can turn some kind of "debug-mode" for bash, to get more information?
@Braiam I agree you do have a point. But I think that may be a supplementary question. It's debatable. But I would be willing to bet that even with set -x, the user still won't understand why the issue is occurring.
The reason I agreed w/ Braiam's closing is the last sentence "How can I found the reason?"
I think there's fundamentally 2 Q's in this OP's Q. One is help me w/ my immediate need, and also how can I do this myself, either now or in the future.
@Patrick if you read most of my answers about "halp, i haz a problemz" you will notice that I always add how to discover where the issue is, but in this case OP seems to be more interested in discovering the cause of the underlying issue rather than fixing the issue
as for the actual reason for the issue he's experiencing, I'm actually not sure. I'm wondering if that's actually the script, or if something is left out (or what this other script being called is doing). I can't see anything which would cause the script to background itself (which seems to be is what is happening)
The only thing that springs to mind is SIGTTIN/SIGTTOU, but there's no terminal IO, so that shouldn't happen
I'd be willing to bet something is sending the script a SIGSTOP/SIGTSTOP/SIGTTIN/SIGTTOU, but yeah, I don't see a reason why. It would have to be some code that's not shown
that's been my thought of late too @Braiam, we should be closing these types of Q's until they're cleaned up sufficiently to be answered. Otherwise we get 3+ A'ers on them that are guessing at the issue. It wastes ppls time and mucks the site up with confusing A'ers to a single Q.
@slm Except that numerous times I've run across questions which people have voted to close with "unclear what you're asking" because they don't understand the subject matter. I will come along and then can't answer it because it's closed. And it's near impossible to re-open a closed question.
I despise the "unclear what you're asking" close action for that reason
If Q's are sitting in the reopen Q I'm in there too. I'm generally going through the Q's like everyone else to see if there are things I can help move along
@Patrick I'm also the 2nd most active user here next to Gilles so I'm wearing 2 hats
regarding re-opens you have to bring them to other's attention in here. That's not an ideal process but we still don't have a lot of "active" users that can cast votes
@Patrick I've seen Q's get asked, closed and a new one pop up and get A'ered too.
@Patrick I agree. If you see something that really should have been reopened but wasn't, I suggest you 1) first edit it so it's clearer to others as well. 2) If that still fails to reopen it, ping one of the mods here or flag it.
Note to all users: Don't hesitate to flag/bug the mods if something is not working as it should. We're supposed to be human exception handlers, that's why you voted for us.
@Ramesh Up to you. Personally, I don't think it's needed. If I have something to announce, I can post a meta Q and have it featured. I don't see why something extra is necessary.
i rarely hear people say things like "please vote to reopen this", which I think would be reasonable. I basically have chat open all the time, and occasionally glance at it, so I'd probably catch those things.
@Gilles What is a top? Like those things that spin? Hmm, haven't seen one of those in a very long time.
@slm Learning from a book is fine. But of course, it depends on the book. Also, sometimes you need to ask questions. You can't ask a book questions. Well you can't, but it won't reply. If it does, you've got bigger problems than figuring out how to learn stuff.
Hmm, I'm rambling...
I was wondering how Stephane came across that bash bug. Would asking about this be an appropriate question here? It would be an unusual question, because it would (a) have an answer, i guess, but (b) there would be only one person on the planet (by definition) that could answer it.
It's really a function named module. It appears in environment variable when you export a function.
Try:
$ test() { echo test; }
$ export -f test
$ env | sed -n '/test/{N;p}'
test=() { echo test
}
From bash documentation - Bourne Shell Builtins:
export
export [-fn] [-p] [name[=value]]
...
if they can emulate other architectures, I'd call them emulators
if they can only execute native instructions in a sandboxed environment, then no
e.g. if you can use them to install Solaris compiled for Sparc on your x86_64 machine, then it is an emulator. If it can only run x86 / x86_64 code, then it isn't.
@casey thanks. So I was just getting this question, because I was trying to install a cross compilation tool chain for MIPS architecture in x86 machines.
So in this case, the cross compiled tool chain is an emulator?
@casey If something was a machine simulator (as opposed to emulator) I'd expect it to be much more accurate. E.g., it should get all the instruction timings exactly as the actual hardware would. (At least as far as the running program can tell.)
Including all the weird cache, out-of-order execution, etc. effects
It's a platform from which hardware emulators can be constructed
so you can use it to emulate any hardware you want (in software)
in theory
QEMU is a generic and open source machine emulator and virtualizer.
When used as a machine emulator, QEMU can run OSes and programs made for one machine (e.g. an ARM board) on a different machine (e.g. your own PC). By using dynamic translation, it achieves very good performance.
When used as a virtualizer, QEMU achieves near native performances by executing the guest code directly on the host CPU. QEMU supports virtualization when executing under the Xen hypervisor or using the KVM kernel module in Linux. When using KVM, QEMU can virtualize x86, server and embedded PowerPC, and S390 guests.
@derobert Yes when we simulated H/W the timing within the Simulator would be accurate as if the device were in the physical world, yet it could take 20 hours to generate that say 10 seconds of simulator time
there's 2 special programming languages call VHDL and Verilog that provide this capabilitiy
the other thing that mattered was how the code one would use in the simulator was written. You could stick a C application on the back of the simulator that mimicked the functionality and timing of something that's physical, but the code could never be "synthesized" into actual hardware. If you write your VHDL/Verilog in a specific way there are tools that will synthesize it into physical elements.
I usually don't pay much attention as to how the Review Queue behaves, but today I found the following situation:
This question has 2 Close Votes:
However, while I expect the question to be found in my Review Queue, it is empty:
So ... when does the closing votes "enter" the Review Queue?
I've seen many times Q's that should be in queues that haven't made their way there yet, there are obviously timed tasks that run with a SE site, I haven't bothered to find out why until you just asked. That is one of the timed activities, there are countless more I would gather.
@derobert true, I hadn't considered that one. So emulator == I should be able to run a non-native binary and simulator == I should be able to peek and poke every bit of memory and hardware as if the machine were a real physical entity (perhaps that still fits my idea of a physical simulation)
E.g., it'd be reasonable if you can't ask what's the voltage on the emitter of a particular transistor inside the CPU... A simulation need not go down to the lowest level.
I'm running bully on Kali Linux and this is the output :
[!] Received disassociation/deauthentication from the AP
[+] Rx( ID ) = 'NoAssoc' Next pin '99728298'
[+] Rx( M5 ) = 'Pin1Bad' Next pin '19268293'
[+] Rx( ID ) = 'EAPFail' Next pin '19268293'
[!] Received disassociation/deauthe...
Bully is conceptually identical to other programs, in that it exploits the (now well known) design flaw in the WPS specification. It has several advantages over the original reaver code. These include fewer dependencies, improved memory and cpu performance, correct handling of endianness, and a more robust set of options. It runs on Linux, and was specifically developed to run on embedded Linux systems (OpenWrt, etc) regardless of architecture.
Please be courteous towards the users who are reading your questions and answering it. It would be better if you had taken little effort in framing your question in a much more better way. — Ramesh21 secs ago
I want such questions to be dealt more seriously. Just downvotes are not enough.
I mean we could close it but what reason can we give for this one?
It is certainly not unanswerable or unclear or too broad.
@Ramesh - if it makes you feel better I noted the university's name and found a link to their code of conduct for students and have contacted them regarding this matter.
But I like my answer better. Could these be merged? Or should I close the later one as a dupe of the earlier one? Or the reverse? I should have searched before answering - apparently nobody else does... Sigh.
Canonical question regarding the recently disclosed padding oracle vulnerability in SSL v3. Other identical or significantly similar questions should be closed as a duplicate of this one.
What is the Poodle vulnerability?
I use [product/browser]. Am I affected?
Is [product] vulnerable to t...
I'm having some problems with some scripts in bash, about errors and unexpected behaviors. I would like to investigate the causes of the problems so I can apply fixes. Is there a way I can turn some kind of "debug-mode" for bash, to get more information?
It's really a function named module. It appears in environment variable when you export a function.
Try:
$ test() { echo test; }
$ export -f test
$ env | sed -n '/test/{N;p}'
test=() { echo test
}
From bash documentation - Bourne Shell Builtins:
export
export [-fn] [-p] [name[=value]]
...
I usually don't pay much attention as to how the Review Queue behaves, but today I found the following situation:
This question has 2 Close Votes:
However, while I expect the question to be found in my Review Queue, it is empty:
So ... when does the closing votes "enter" the Review Queue?
I'm running bully on Kali Linux and this is the output :
[!] Received disassociation/deauthentication from the AP
[+] Rx( ID ) = 'NoAssoc' Next pin '99728298'
[+] Rx( M5 ) = 'Pin1Bad' Next pin '19268293'
[+] Rx( ID ) = 'EAPFail' Next pin '19268293'
[!] Received disassociation/deauthe...
